[ACPI] fix possible acpi thermal leak in failure path

Coverity: #601

Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index 19f3ea48475e..d0b44ce2ec5a 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -942,8 +942,10 @@ acpi_thermal_write_trip_points(struct file *file,
         memset(limit_string, 0, ACPI_THERMAL_MAX_LIMIT_STR_LEN);
 
         active = kmalloc(ACPI_THERMAL_MAX_ACTIVE * sizeof(int), GFP_KERNEL);
-        if (!active)
+        if (!active) {
+                kfree(limit_string);
                 return_VALUE(-ENOMEM);
+        }
 
         if (!tz || (count > ACPI_THERMAL_MAX_LIMIT_STR_LEN - 1)) {
                 ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid argument\n"));